SAT Math · Linear inequalities in one or two variables · medium
What is the smallest integer value of x that satisfies both x > -3 and 2x - 7 > 5?
What is the smallest integer value of that satisfies both and ?
Answer and explanation
Answer: 7
Solve the second inequality: gives , so . The first inequality, , is weaker, because any number greater than 6 is automatically greater than . The combined solution is . The smallest integer greater than 6 is 7. Notice that 6 itself does not work, since , which is not greater than 5. A common wrong answer is 6, from treating the inequality as non-strict. Another is , the smallest integer satisfying only the first inequality. Both conditions must hold.
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